Still waiting for an offer?

I applied to the Univeristy of Nottingham in November, and I am still waiting on a reply. I understand that each department works differently, and perhaps the department for the course I am taking (Politics and International Relations) may be taking their time, but it just worries me. All of my friends, most of whom did not apply until January, have received their offers from Nottingham, and naturally I am panicking a bit. Should I do anything? Or would that be extremely inappropriate (which I feel like it would be)? I know that the best thing would be to sit and wait patiently, but it's freaking me out a bit. Are they known for taking a long time to respond? Am I overthinking it? Any input or experiences would be greatly appreciated!!

Hang in there. My daughter applied for PPE /Politics & Philosophy at UCL & Bristol, on October 13th - so around a month before you- and still no offer (or rejection!) Maybe no news is good news, but it is frustrating especially when one hears of others getting offers.